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WD VelociRaptor
SATA Hard Drives
Physical Specifications
Formatted capacity
User sectors per drive
WD model number
SATA latching connector
Bytes per sector (STD)
3
Form factor
Interface
3
RoHS compliant
Performance Specifications
Average latency
Buffer
Cache
Read
Write
Data transfer rate (maximum)
Buffer to host
Host to/from drive
Drive ready time
Error rate (non-recoverable)
Rotational speed
Seek time
Read
Write
Track-to-track seek time
Load/unload cycles
Limited warranty
4
1
As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one
trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) =
1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, and gigabit per second
(Gb/s) = one billion bits per second. Effective maximum SATA 3 Gb/s transfer rate calculated according to the Serial ATA specification
published by the SATA-IO organization as of the date of this specification sheet. Visit www.sata-io.org for details.
2
A 2.5-inch drive in a 3.5-inch IcePack heat sink mounting frame.
3
WD products manufactured and sold worldwide after August 1, 2005, meet or exceed Restriction of Hazardous Substances (RoHS)
compliance requirements as mandated by the European Union for electrical and electronic products. The RoHS Directive 2002/95/EC of the
European Parliament, which is effective in the EU beginning July 1, 2006, aims to protect human health and the environment by restricting the
use of certain hazardous substances in new equipment, and consists of restrictions on lead, mercury, cadmium, and other substances.
4
Standard five-year limited warranty, unless otherwise required by law. For extended warranty information,
visit our Web site at support.wdc.com.
1
150 GB
300 GB
150,039 MB
300,069 MB
293,046,768
586,072,368
WD1500HLFS
WD3000HLFS
Yes
Yes
512
512
3.5-inch
3.5-inch
SATA 3 Gb/s
SATA 3 Gb/s
Yes
Yes
1
3 ms
16 MB
Adaptive
Yes
3 Gb/s
126 MB/s sustained
7.0 sec (average), 10 sec (maximum)
15
<1 in 10
bits read
10,000 RPM
4.2 ms (average)
4.7 ms (average)
0.7 (maximum)
50,000 minimum
5-year
For service and literature:
support.wdc.com
www.westerndigital.com
800.ASK.4WDC
North America
949.672.7199
Spanish
+800.6008.6008 Asia Pacific
+31.20.4467651 EMEA
Western Digital, WD, WD Raptor, and the
WD logo are registered trademarks in the
U.S. and other countries; and
WD VelociRaptor, NoTouch, IcePack, RAFF,
and FIT Lab are trademarks of Western
Digital Technologies, Inc. Other marks may
be mentioned herein that belong to other
companies. Product specifications subject
to change without notice.
© 2008 Western Digital Technologies, Inc.
All rights reserved.
Western Digital
20511 Lake Forest Drive
Lake Forest, California 92630 U.S.A.
2879-701284-A00 Aug 2008
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